• Title/Summary/Keyword: systemic circulation

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Retrieval of an Intravascular Catheter Tip Fracture in a Dog

  • Na, Yeon-Joo;Ko, Hui-Yeon;Geum, MiGyeong;Jeon, Sukhyon;Kim, Se Eun;Kim, Ha-Jung
    • Journal of Veterinary Clinics
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    • v.37 no.5
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    • pp.270-272
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    • 2020
  • An intravenous foreign body was retrieved from a 10-year-old Maltese. A 24 gauze of fracture intravenous (IV) catheter moved into the circulation to a Maltese (3.4 kg) dog through the upper cephalic vein. Radiography was performed to observe the fracture's moving path, followed by fluid therapy. It was found in the upper cephalic vein, moved about 10 cm up to dorsal and near the proximal humerus. Retrieval surgery was performed successfully without complications. The catheter fracture retrieval sometimes remains a challenge because of unknown complications in veterinary medicine. This case report describes that a fracture IV catheter moved to the systemic vein was removed successfully by a surgery.

Clinical Experiences of Stellate Ganglion Block Therapy (성상신경절차단요법에 대한 임상경험)

  • Cheon, Im-Soon;Kim, Jeng-Il;Ban, Jong-Seuk;Min, Byung-Woo
    • The Korean Journal of Pain
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    • v.6 no.2
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    • pp.204-207
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    • 1993
  • Stellate ganglion block therapy is widely practiced in pain clinics for a wide variety of diseases(numbering over 150). The precise mechanisms are unknown, but it has been said that the systemic effect of the stellate ganglion block may improve the hypothalamic circulation and thus restoring the homeostasis of the body. We have administered stellate ganglion block for the treatment and cure of the following examples of ailments idiopathic hypertension, allergic rhinitis, constipation, insomnia, irritable bowel syndrome. The causes of these diseases are unclear except that they are recognized as nervous disorders. However in clinical field, the effect of stellate ganglion block appears clearly. In this study 13 patients were treated only with stellate ganglion block; once daily for l5 days. The outcome of the treatments were as follows: 6 patients had excellent results, 5 patients had good results and the remaining 3 with poor results. We conclude that stellate ganglion block appears to be a good choice as the treatment for a number of nervous disorders.

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Prodrug and Antedrug: Two Diametrical Approaches in Designing Safer Drugs

  • Lee, Henry-J.;Cooperwood, John-S.;You, Zhengqing;Ko, Dong-Hoon
    • Archives of Pharmacal Research
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    • v.25 no.2
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    • pp.111-136
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    • 2002
  • The prodrug and antedrug concepts, which were developed to overcome the physical and pharmacological shortcomings of various therapeutic classes of agents, employ diametrically different metabolic transformations. The prodrug undergoes a predictable metabolic activation prior to exhibiting its pharmacological effects in a target tissue while the antedrug undergoes metabolic deactivation in the systemic circulation upon leaving a target tissue. An increased therapeutic index is the aspiration for both approaches in designing as well as evaluation criteria. The recent research endeavors of prodrugs include the gene-directed and antibody-directed enzymatic activation of a molecule in a targeted tissue, organ specific delivery, improved bioavailabilities and cellular penetration of nucleotides. As for antedrugs, emphasis in research has been based upon the design and synthesis of systemically inactive molecule by incorporating a metabolically labile functional group into an active molecule.

Dural Reconstruction in Refractory Cranial Infection using Omental Free Flap (반복적인 두개내 감염에서 유리 대망피판을 이용한 경질막 재건)

  • Yoo, Ji Han;Eun, Seok Chan;Han, Jung Ho;Baek, Rong Min
    • Archives of Plastic Surgery
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    • v.36 no.5
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    • pp.670-673
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    • 2009
  • Purpose: Epidural abscesses and subdural empyemas after craniotomy are uncommon, potentially lethal, complications of neurosurgery. Patients with these complications may be difficult to manage and dural reconstruction in these patients are challenging. Methods: A 28 - year - old female patient showed recurrent intracranial infection after craniotomy for evacuation of a arachnoid cyst and subdural hematoma. Despite prolonged systemic antibiotic administration and a debridement of the subdural space, infection persisted, as evidenced by persistent fever, an elevated WBC count, CSF leakage, low CSF glucose level, and purulent wound discharge. The authors removed the previously applied lyophilized dura and transferred free omental flap to reconstruct the dura, obliterate the cyst and cover the cerebral hemisphere in the craniotomy defect. Microvascular anastomosis was between gastroepiploic and superficial temporal vessels. Results: The postoperative course was uneventful and flap survival was excellent. The infection - resistant omental tissue allowed sufficient blood circulation and dead space control. The patient was discharged 1 month after surgery and wound discharge or recurrence was absent during 13 months of follow up periods. Conclusion: The use of vascularized free omentum proved useful in cases of intractable cranial wound infection and cerebrospinal fluid leakages.

Diagnostic Imaging of Portosystemic Shunt using CT in Two Dogs (전산화단층촬영을 이용한 문맥전신단락의 진단 증례)

  • Jung, Joo-Hyun;Chae, Woong-Joo;Chang, Jin-Hwa;Chae, Ho-Cheol;Kim, Wan-Hee;Lee, Ki-Chang;Yoon, Jung-Hee;Choi, Min-Cheol
    • Journal of Veterinary Clinics
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    • v.24 no.3
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    • pp.461-466
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    • 2007
  • Two dogs were admitted with a history of anorexia, ataxia, shivering, lethargy, hypersalivation and seizure. Patients were suspected for portosystemic shunts on the basis of clinical signs, increased hepatic serum profiles on the blood test, microhepatica on plain abdominal radiographs, and an abnormally dilated and tortuous vessel on abdominal ultrasonographs. To diagnose PSS and to further evaluate type, shape, and location of shunt and hepatic vasculatures, the computed tomography (CT) angiography for portal and systemic circulation was performed. The shape, location and pathway of extrahepatic single shunt were confirmed in two dogs. Dual phases (the arterial phase and the venous phase) CT angiography and reformatted and three-dimensional images offered good understanding of PSS and planning surgical treatment.

Laboratory Diagnosis of Invasive Candidiasis

  • Ellepola Arjuna N.B.;Morrison Christine J.
    • Journal of Microbiology
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    • v.43 no.spc1
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    • pp.65-84
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    • 2005
  • Invasive candidiasis is associated with high morbidity and mortality. Clinical diagnosis is complicated by a lack of specific clinical signs and symptoms of disease. Laboratory diagnosis is also complex because circulating antibodies to Candida species may occur in normal individuals as the result of commensal colonization of mucosal surfaces thereby reducing the usefulness of antibody detection for the diagnosis of this disease. In addition, Candida species antigens are often rapidly cleared from the circulation so that antigen detection tests often lack the desired level of sensitivity. Microbiological confirmation is difficult because blood cultures can be negative in up to 50% of autopsy-proven cases of deep-seated candidiasis or may only become positive late in the infection. Positive cultures from urine or mucosal surfaces do not necessarily indicate invasive disease although can occur during systemic infection. Furthermore, differences in the virulence and in the susceptibility of the various Candida species to antifungal drugs make identification to the species level important for clinical management. Newer molecular biological tests have generated interest but are not yet standardized or readily available in most clinical laboratory settings nor have they been validated in large clinical trials. Laboratory surveillance of at-risk patients could result in earlier initiation of antifungal therapy if sensitive and specific diagnostic tests, which are also cost effective, become available. This review will compare diagnostic tests currently in use as well as those under development by describing their assets and limitations for the diagnosis of invasive candidiasis.

A Case of Severe Hyperammonemic Encephalopathy Caused by Urinary Tract Infection in Obstructive Uropathy

  • Mun, Bo Gyung;Lee, Joo Hoon;Park, Young Seo;Jung, Jiwon
    • Childhood Kidney Diseases
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    • v.25 no.2
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    • pp.112-116
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    • 2021
  • Hyperammonemia is mainly caused by diseases related to liver failure. However, there are also non-hepatic causes of hyperammonemia, such as urinary tract infection (UTI) due to urease-producing organisms. Urease production by these bacteria induces a hydrolysis of urinary urea into ammonia that can cross the urothelial cell membrane and diffuse into blood vessels, leading to hyperammonemia. Delayed diagnosis and treatment of hyperammonemia can lead to lethal encephalopathy that can cause brain damage and life-threatening conditions. In the presence of obstructive uropathy, UTI by urease-producing bacteria can lead to more severe hyperammonemia due to enhanced resorption of ammonia into the systemic circulation. In this report, we present a case of acute severe hyperammonemic encephalopathy leading to brain death due to accumulation of ammonia in blood caused by Morganella morganii UTI in a 10-year-old girl with cloacal anomaly, causing obstructive uropathy even after multiple corrections.

A New Consideration of the 'Liver governing the Wind' from a Metabolic Viewpoint (대사적 관점에서 간주풍(肝主風)에 관한 소고(小考))

  • Miso S. Park;Junghyo Cho
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.38 no.5
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    • pp.173-178
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    • 2024
  • The liver is a major organ in human metabolism and is responsible for systemic circulation and metabolism. The traditional concepts of wind related to the nervous and motor system have limitations in explaining the role of the liver in human metabolism. To overcome these limitations, it is necessary to focus on the physiological activity and pivotal role of bioactive gases in the metabolism of gas flow. Additionally, the action of bioactive gases occurs in the presence of chromoprotein, such as heme protein, which acts as a photoreceptor between the eyes and the liver, ultimately involved in the circadian cycle and metabolism. This series of processes demonstrates that the unique theories of Korean medicine-where the liver governs the wind and the eyes-are accurately aligned from a metabolic perspective, suggesting that Korean medicine physiology can be integrated and appreciated from a modern medical standpoint.

Deep Sedation for Palate Alginate Impression Procedure in a Post-Fontan Procedure Patient with Mental Retardation (Fontan 수술을 받은 정신지체 소아에서 인상채득을 위해 시행한 깊은 진정)

  • Lee, Jung-Man;Seo, Kwang-Suk;Kim, Hyun-Jeong;Shin, Soon-Young;Shin, Teo-Jeon
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.12 no.1
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    • pp.45-50
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    • 2012
  • The Fontan operation is a heart operation used to treat complex congenital heart defects like tricuspid atresia, hypoplastic left heart syndrome, pulmonary atresia and single ventricle. A single ventricle is dedicated to pumping oxygenated blood to the systemic circulation and the entire systemic venous return reaches the pulmonary arterial system without the direct influence of a pumping chamber. In the patient with Fontan operation, it is important to achieve adequate pulmonary blood flow and cardiac output in anesthetic management. In this case, a 10-year-old boy (19.6 kg, 114 cm) with cleft palate, cerebral palsy and severe mental retardation, who underwent a Fontan operation when he was 4 years old, was presented for deep sedation. Because he was suffering from eating disorder with cleft palate, the orthodontist and the plastic surgeon planned to insert intraoral orthodontic device before cleft palate repair. But it was impossible to open his mouth for alginate impression procedure. After careful pre-anesthesia evaluation we planned to administer deep sedation with propofol infusion. After Intravenous catheter insertion, we started propofol intravenous infusion with the formula of a loading dose of 1.0 mg/kg followed by an infusion rate of 6.0 mg/kg/hr with syringe pump. His blood pressure was remained around 80/40 mmHg after loss of consciousness, but he could not maintain his airway patent. So we lowered the infusion rate to 3.0 mg/kg/hr, immediately. The oxygen saturation was maintained above 95% with nasal oxygen supply, and blood pressure was maintained around 100-80/60-40 mmHg. After the sedation of 110 minutes with propofol (the infusion rate to 3.0-5.0 mg/kg/hr), he fully regained consciousness, and was discharged without complication after 1 hour observation. In case of post-Fontan patient, intravenous deep sedation with propofol was safe and effective method of behavioral management during dental treatment.

Surgical Treatment of Mitral Stenosis (승모판막 협착증의 외과적 요법)

  • 김용진
    • Journal of Chest Surgery
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    • v.10 no.2
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    • pp.241-249
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    • 1977
  • Atrial septal defect is one of the most frequently encountered congenital heart disease. Up to December 31, 1976, 1682 cardiac patients received cardiac catheterization in the cardiac department of Yonsei university medical college. Out of the 1682 cardiac patients 723 cases had congenital heart disease and only 116 cases had congetial atrial septal defect. This amounted to 16.04% of all those with congenital heart disease. 58 cases of congenital atrial septal defect operated in the chest surgery department were presented. Of these 58 cases of atrial septal defect, 27 cases were male and 31 cases were female. Their ages ranged from 5 years to 54 years. The systolic pressure of the main pulmonary artery of 40 out of the 58 cases of atrial septal defect was below 40% of that of the systemic blood pressure: in 6 cases, the range of the systolic pressure of the main pulmonary artery was 50-90mmHg; in 12 cases, the range of the systolic pressure of the main pulmonary artery was 40-50mmHg. Average age of these was 30. 1 years. This study tends to show that Korean patients with atrial septal defect even though younger have a slight higher systolic pressure of the main pulmonary artery than Western patients have. The pulmonary blood is 1.5-2.5 times of systemic blood flow in 52 cases out of 58 cases of atrial septal defect.In only one of the 58 cases of atrial septal defect, the Rp was found to be as high as 45% of Rs. All other cases were below this level.51 cases had ostium secundum defect, 4 out of these cases had ostium secundum defect combined with mitral incompetence and 6 out of them had double ostium secundum defect. The remaining 7 cases had ostium primum defect. Their atrial defects were repaired under direct vision utilizing extracorporeal circulation, by hemodilution technic combined with moderate hypothermia. 44 cases [2nd atrial septal defect] were repaired by direct sutures while 14 cases, including the 7 cases ostium primum defects needed patches [1 pericardium and 13 teflon patch]. In 4 cases there were single defects while showed two defects. However the associated septal defect was so small that it could be closed by direct sutures. The size of the defect ranged between 6.0cm2and 10.0cm2 in 19 cases[33.7%]: the smallest being 0. 5cm2 and the largest 24cm2. The surgical mortality was 2 cases [3.4%]. These one case with ostium primum defect, could not be resuscitated on operation table. The cause of death in this case was myocardial failure and MI. The other, a case of ostium primum defect had a second operation on the first operative day due to massive bleeding from LV vent-line insertion site.The patient died on 26th post-operative day due to sepsis.

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